I’m a native Glaswegian but I just moved back having lived in China for 4 years and there’s a noodle shop on bath street just a couple of doors up from watt brothers called “Lanzhou noodles “ . It is completely legit ! Be ready when you go in , they don’t speak English but have a book with instructions for you to tell them what you want. I recommend the classic . Beef noodles (牛肉面）. It’s cash only btw .